Concepedia

Top-down Estimation

Top-Down Estimation is a cost or expenditure estimation approach that begins with an overall budget or high-level estimate and partitions it into lower-level components, distinguished from bottom-up methods by deriving granular estimates through decomposition rather than aggregation.

50

Publications

2.4K

Citations

251

Authors

143

Institutions

Publications per year

2017–2026

23

Parents

Publications

50

An Overview of Speaker Identification: Accuracy and Robustness Issues

Roberto Togneri, Daniel Pullella · IEEE Circuits and Systems Magazine · 2011 · 266 citations

, , +13

Inverse modelling of national and European CH <sub>4</sub> emissions using the atmospheric zoom model TM5

P. Bergamaschi, Maarten Krol, Alex Vermeulen et al. · Atmospheric chemistry and physics · 2005 · 164 citations · Full text

, , +15

Inverse modelling of European CH <sub>4</sub> emissions during 2006–2012 using different inverse models and reassessed atmospheric observations

P. Bergamaschi, Ute Karstens, Alistair J. Manning et al. · Atmospheric chemistry and physics · 2018 · 151 citations · Full text

, , +13

Direct oceanic emissions unlikely to account for the missing source of atmospheric carbonyl sulfide

Sinikka T. Lennartz, Christa Marandino, Marc von Hobe et al. · Atmospheric chemistry and physics · 2017 · 139 citations · Full text

, , +17

Top-down or bottom-up: Aggregate versus disaggregate extrapolations

Byron J. Dangerfield, John S. Morris · International Journal of Forecasting · 1992 · 135 citations

, , +6

1–5 of 50

Authors

251

  1. MR
    Michel Ramonet

    Laboratoire des Sciences du Climat et de l'Environnement, France

    4 publications · 499 citations

    4

    h-index

  2. EJ
    E. J. Dlugokencky

    NOAA Earth System Research Laboratory, United States

    4 publications · 499 citations

    4

    h-index

  3. AV
    Alex Vermeulen

    Energy Research Centre of the Netherlands, Netherlands

    3 publications · 447 citations

    3

    h-index

  4. FM
    Frank Meinhardt

    German Environment Agency, Germany

    3 publications · 447 citations

    3

    h-index

  5. SO
    Simon O’Doherty

    University of Bristol, United Kingdom

    3 publications · 301 citations

    3

    h-index

1–5 of 251

Institutions

143

  1. Laboratoire des Sciences du Climat et de l'Environnement

    Gif-sur-Yvette, France

    5 h-index

    21 publications

    1.9K citations

  2. Université de Versailles Saint-Quentin-en-Yvelines

    Versailles, France

    4 h-index

    16 publications

    1.2K citations

  3. Centre National de la Recherche Scientifique

    Paris, France

    4 h-index

    16 publications

    1.2K citations

  4. Environment and Climate Change Canada

    Ottawa, Canada

    3 h-index

    8 publications

    259 citations

  5. University of Bristol

    Bristol, United Kingdom

    3 h-index

    5 publications

    337 citations

  6. CEA Paris-Saclay

    Gif-sur-Yvette, France

    3 h-index

    15 publications

    1.1K citations

  7. CSIRO Oceans and Atmosphere

    Canberra, Australia

    3 h-index

    5 publications

    166 citations

  8. Commissariat à l'Énergie Atomique et aux Énergies Alternatives

    Paris, France

    3 h-index

    15 publications

    1.1K citations

1–8 of 143

Venues

  1. Atmospheric chemistry and physics

    12 publications · 959 citations

    12

    h-index

  2. RePEc: Research Papers in Economics

    Repository · 2 publications · 30 citations

    2

    h-index

  3. 2

    h-index

  4. The Science of The Total Environment

    1 publications · 17 citations

    1

    h-index

  5. ORBi (University of Liège)

    Repository · 1 publications · 11 citations

    1

    h-index

1–5